21133712

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11689}}^1$

素因数の和:11810

約数の個数: 20

約数和(自身を含む): 41312460

約数和(自身を除く): 20178748

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11689, 23378, 46756, 93512, 187024, 1320857, 2641714, 5283428, 10566856, 21133712]

約数ペア:

[(1, 21133712), (2, 10566856), (4, 5283428), (8, 2641714), (16, 1320857), (113, 187024), (226, 93512), (452, 46756), (904, 23378), (1808, 11689)]